As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF AT ABOUT 80 KTS DUE TO GEAR CONFIGURATION RED WARNING LIGHT AND HORN COMING ON. A/C TAXIED OFF RUNWAY WITHOUT INCIDENT. ONE OF THE MAIN GEAR STEERING POWER CONTROL ACTUATORS (PCA) MAY BE SLOW TO LOCK OR IS LOCKING INTERMITTENTLY. THE PCA WAS REPLACED. REMOVED PCA SENT TO AN OUTSIDE VENDOR.